Toothbrush



Aug. 28, 1923.

A. DAMICO ET AL TOOTHBRUSH Filed April 29, 1927 INVENTORS AJDMnzico/ILL. Gre 612661?? ii ntented Aug- 1928' llNlTED STATES rhNGELO DAMICOAND ABRAHAM L. GREENBERG, OF STOCKTON, CALIFORNIA.

'I'OOTHBRUSH.

Application filed April 29, 1927. Serial No. 187,551.

This invention relates to tooth brushes, our principal object being toprovide a tooth brush consisting of separable handle and bristle membersarranged to be easily and quickly ap lied to or detached from eachother, so t at various bristle members can be interchanged and used withthe one ban The owner of our tooth brush may therefore have anassortment of brushes o of different sizes, grades and arrangementbristles, any one of which may be mounted connection with the one handlefor immediate use whenever required. This also permits any bristlemember being easily deli; tached for sterilizing, thorough cleaning or17c as will fully appear by a perusal the following specification andclaims.

.ln the drawings similar characters of reference indicate correspondingparts in the several views:

l is a perspective elevation of our brush with the parts assembled.

3 .53;. :iis a similar view of the handle her detached. 1g. 3 is aperspective view of a bristle member detached.

Fig. l is a lon itudinal section of a bristle member and is adjacentportion of the handle.

Fig. is a cross section on the line 5--5 of Fi 4:.

Referring now more particularly to the characters of reference on thedrawings, the numeral 1 denotes the handle member of suitable materialand dimensions. One end of the handle has a tang 2 extending lengthwisetherefrom, the tang bein preferably tapered at its outer end in heightand the side edges being cut on a slant or bevel as shown. The bristlemember to cooperate with the handle comprises a back or bristle holder 3of suitable len 11 and width, supportin the bristles 4. et in the outerface of the ack and open to one end of the same is a sleeve 5 ofnon-corrosive metal whose interior dimensions are sha ed and sized toconform to and wedging y receive the tang 2. The bevel sides of the tangand sleeve of course prevents the handle from being inserted upsidedown. Intermediate its ends the inner surface of the upper face of thesleeve is provided with a small nub 6 to yieldably engage a depression 7in the tang when the latter is positioned in the sleeve. It willtherefore be seen that the bristle member may be firmly yet detachablyconnected to the handle in a quick and easy manner.

The bristles are arranged in the form of longitudinally extending andtransversely spaced rows, all the bristles in each row, except the one 4furthest from the holder, being cut so that their outer ends lie inconvex are relative to the holder both longitudinally and transversely.Said other bristle 4 is preferably as long as the cen trally dis osed orlongest bristle in the main port1on of the row as clearly shown in Fig.4. This provides a relatively high transverse row of bristles at theinner end of the brush which permits of eficient cleaning of the spacesbetween the back or other teeth at the end of the brush furthest in themonth without detracting from the effectiveness of the other bristlesfor main brushing opera tions against the surface of the teeth.

From the foregoing description it will be readily seen that we haveproduced such a device as substantially fulfills the objects of theinvention as set forth herein.

' While this specification setsforth in detail the present and preferredconstruction of the device, still in practice such deviations from suchdetail may be resorted to as do not form a departure from the spirit ofthe invention, as defined by the appended claims.

Having thus described our invention what We claim as new and useful anddesire to secure by Letters Patent is:

1. A tooth brush comprising a handle member, a tang on one end of thehandle, a bristle holder, and a metal sleeve open on one end andextending longitudinally of the holder to removably receive the tang;the outer side edges of the sleeve being disposed at opposed slopesrelative to each other and fitting into a, similarly shaped groove cutin the back of the holder.

A. tooth brush comprising a, handle member, a tang on one end thereof,a. bristle holder, and a sleeve of resilient metal set in the holder andopen at one end to reeeive the tang, the face of the sleeve along theback of the holder being exposed to permit the metal to flex, said facehaving an 10 inwardly projecting nub formed therein to yieldebly engagea depression formed in the tang.

In testimony whereof we aflix our signatures.

ANGEI/O DAMICO. ABRAHAM L. GREENBERG.

